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diesel damage, maintenance

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Posted by Robert Morein on September 5, 2004, 3:51 pm
From these discussions I get the impression two things can happen to an
underloaded diesel:
1. carbon deposits
2. bore glazing

Can the carbon be removed by periodically running the diesel at high load?

Bore glazing is permanent. How likely is this to happen?

Posted by sylva on September 5, 2004, 9:13 pm
On Sun, 5 Sep 2004 11:51:07 -0400, "Robert Morein"

Yes, that is why we load the genset soon after start up with some
resistant load (immersion water heaters in our case)

Nearly, there are some savage glaze busters that can be added to
abrade off the glaze but they cannot do the rest of the engine much

You'll need to do a search on the term, I think it's pretty
inevitable, I know it increases oil consumption and increases the need
for oil changes because of blow by. I have this very problem on a 6cyl
ford tractor that spends a lot of time driving a hydraulic pump at
light load.

I have asked for some advice on this on an old engine enthusiasts
group, I'll let you know the result.


Posted by John on September 6, 2004, 5:27 am
 It is not the load that is important, but the engine temperature.  If it is
loaded enough to run at what ever temperature it is designed for, then it will
do just fine.


Posted by SQLit on September 6, 2004, 2:43 pm

I encourage customers to purchase an load bank. It always starts an
I personally do not like the emersion type load banks. We always use air
load banks. The gensets I work with are usually medium voltage and are
critical power. So the extra expense is understandable.

Check in your local area with some of the installers of gensets. They might
rent or do the testing for you for a reasonable fee. You should not need to
load bank the genset more than once a year. However running it at no or very
low load is,,,,
I would not do it with my genset. It is always better to run under at least
50% load and avoid the carbon from the on set.

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